Question

Vikram invests some money, in three different schemes for 4 years, 8 years and 12 years at 10%, 15% and 20% Simple Interest respectively. At the completion of each scheme, he gets the same interest. The ratio of his investments is

• A. 6:2:1
• B. 5:2:1
• C. 5:2:3
• D. 5:2:7
• E. None of these

Answer 1

The correct option is A 6:2:1

$LetPrincipal=x_1,x_{2}and{x}_3{x}_1\times 4\times 10=x_2\times 8\times 15=x_3\times 12\times 20x_1=3\times 2=6\times 3x_1:x_2=3:1;x_2:x_3=2:1x_1:x_2:x_3=6:2:1$